📒 the hard outer part of eggs, nuts, some seeds, and some animals
📒 any object that looks like the shell of a snail or sea creature
📒 a metal case filled with explosive, to be fired from a large gun
📒 a tube or case containing explosive and a bullet or shot, for shooting from a gun
📒 the walls or outer structure of something, for example, an empty building or ship after a fire or a bomb attack
📒 any structure that forms a hard outer frame
📒 the outer layer of somebody’s personality; how they seem to be or feel
📒 to become less shy and more confident when talking to other people
📒 to become shyer and avoid talking to other people